.box_header,
.box_foot,
footer{
    margin-left: 13px;
    margin-right: 10px;
}
.box_header{
    margin-top: 2px;
    position: sticky;
    top: 0;
    left: 0;
    background-color: #fff;
    padding-bottom: 5px;
    margin-left: 12px;
    margin-right: 10px;
}
.box_header .nav{
    display: flex;
    justify-content: space-between;
    margin-bottom: 5px;
}
.box_header .nav>ul{
    /* cursor: pointer; */
    display: flex;
    flex: 1;
    padding-left: 6px;
    justify-content: space-evenly;
}
.box_header .nav>ul>li{
    /* height: 29px; */
    font-weight: 600;
    color: #7b7b7b;
}
.box_header .nav>ul>li.con{
    color: #ef3926;
}
.box_header .nav>ul>li:hover{
    color: #ef3926;
}
.box_header .nav>ul>li>div{
    margin: 0 auto;
    margin-top: 9px;
    width: 20px;
    height: 3px;
    border-radius: 1px;
}
.box_header .nav>ul>li:hover>div{
    background-color: #ef3926;
}
.box_header .nav>ul>li>div.con{
    background-color: #ef3926;
}


.box_foot ul li{
    margin-top: 20px;
    margin-bottom: 15px;
    display: flex;
    justify-content: space-between;
}
.box_foot ul li .titlebox{
    margin-right: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.box_foot ul li .titlebox .title{
    font-weight: bold;
    margin-bottom: 16px;
    font-size: 17px;
}
.box_foot ul li .titlebox .subtitle span.con{
    color: red;
    font-size: 13px;
    font-weight: bold;

}
.box_foot ul li .titlebox .subtitle span{
    color: #747474;
    font-weight: bold;
    font-size: 13px;
}
.box_foot ul li .imgbox{
    flex: 0.7;
    border-radius: 6px;
    overflow: hidden;
}
footer .great .imgbox{
    width: 44px;
    height: 42px;
    background: url(../img/icon_book_selected.png) no-repeat 0 -2px;
}
footer>div:nth-child(2) a{
    color: red;
}

ol{
    list-style: none;
}
.box_header .navmain{
    margin-bottom: 18px;
}
.box_header .navmain ul{
    display: flex;
    justify-content: space-between;
}
.box_header .navmain ul li,
.box_header .navmain ul span{
    color: #939393;
}
.box_header .navmain ul li:hover,
.box_header .navmain ul span:hover{
    color: #606060;
    font-weight: bold;
}
.box_header .navmain ul li.con{
    color: #606060;
    font-weight: bold;
}
.banner{
    
    margin-left: 13px;
    margin-right: 11px;
}
.banner{
    position: relative;
    overflow: hidden;   
    height: 248px;
    margin-bottom: 20px;
    z-index: -1;
}
.banner ul{
    position: absolute;
    left: 0px;
    width: 780px;
    height: 248px;
    display: flex;
    flex-wrap: wrap;
}
.banner ul li{
    /* margin-right: 1px; */
    width: 390px;
    height: 248px;
    border-radius: 6px;
    overflow: hidden;
    position: relative;
}
.banner ul li p{
    position: absolute;
    bottom: 20px;
    left: 18px;
    font-size: 20px;
    color: #fff;
}
.banner ol{
    display: flex;
    position: absolute;
    bottom: 7px;
    left: calc(50% - 15px);
}
.banner ol li{
    margin-left: 5px;
    width: 10px;
    height: 3px;
    border-radius: 2px;
    background-color: #ede9e8;
}
.banner ol li.con{
    background-color: red;
    width: 15px;
}